Quantcast Figure 8-13.  Square Waveform Display

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Figure 8-12.  VOLTS/DIV Control
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TM-9-254 Gearcase Transfer M548 M548A1 (
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Figure 8-14.  Calibrated Signal Display
TM 9-254 8-6. Waveform Reading - Continued Figure 8-13.  Square Waveform Display (9) If the waveform shown in figure 8-13 is not exactly 2 divisions or grid squares high, gain of the vertical amplifier  should  be  adjusted.    Use  a  small  screwdriver  and  adjust  the  GAIN  control  (fig.  8-12)  for  a waveform exactly 2 divisions high (1 volt peak-to-peak). (10)  The number of divisions or grid squares, that the signal covers in the vertical direction, times the setting of the VOLTS/DIV switch (fig. 8-12) equals the peak-to-peak voltage amplitude of the input signal. NOTE An  oscilloscope  which  has  dual  trace  capability  contains  two  vertical  amplifiers,  a  left  and  right vertical  amplifier.    The  right  vertical  amplifier  has  the  same  controls  and  functions  as  the  left vertical amplifier. (11)  To use the right input and vertical amplifier, you must depress RIGHT vertical mode (10, fig. 8-8). c. Time and Frequency Measurements.  The time and frequency of a waveform is always measured along the horizontal axis of the graduated scale on the face of the CRT. NOTE The following steps apply only to time and frequency measurement of waveforms displayed on the oscilloscope. 8-19

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